Vinyl siding comes in textured or smooth panels. Those with a simulated wood grain are meant to imitate rough-sawn wood that's been stained. Panels are available in horizontal and vertical configurations. Horizontal siding tends to look best on traditional houses, while vertical panels fit well with many contemporary designs. There are also a number of widths. You'll find 8-in.-wide panels or panels that look like two 5-in. or three 3-in. courses of siding. Panels are complemented by vinyl soffit, window trim and other accessories.